From: Jeeja KP jeeja.kp@intel.com

This patch follows up by adding the HDA controller operations. This code is mostly derived from Intel HDA PCI driver without legacy bits

Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl.c | 635 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 635 insertions(+) create mode 100644 sound/soc/intel/skylake/skl.c

diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c new file mode 100644 index 000000000000..c6f4902af9d0 --- /dev/null +++ b/sound/soc/intel/skylake/skl.c @@ -0,0 +1,635 @@ +/* + * skl.c - Implementation of ASoC Intel SKL HD Audio driver + * + * Copyright (C) 2014-2015 Intel Corp + * Author: Jeeja KP jeeja.kp@intel.com + * + * Derived mostly from Intel HDA driver with following copyrights: + * Copyright (c) 2004 Takashi Iwai tiwai@suse.de + * PeiSen Hou pshou@realtek.com.tw + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/pci.h> +#include <linux/mutex.h> +#include <linux/io.h> +#include <linux/pm_runtime.h> + +#include <linux/platform_device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/hda_register.h> +#include <sound/hdaudio.h> +#include "skl.h" + +/* + * initialize the PCI registers + */ +static void skl_update_pci_byte(struct pci_dev *pci, unsigned int reg, + unsigned char mask, unsigned char val) +{ + unsigned char data; + + pci_read_config_byte(pci, reg, &data); + data &= ~mask; + data |= (val & mask); + pci_write_config_byte(pci, reg, data); +} + +static void skl_init_pci(struct skl *skl) +{ + struct hdac_ext_bus *ebus = &skl->ebus; + + /* + * Clear bits 0-2 of PCI register TCSEL (at offset 0x44) + * TCSEL == Traffic Class Select Register, which sets PCI express QOS + * Ensuring these bits are 0 clears playback static on some HD Audio + * codecs. + * The PCI register TCSEL is defined in the Intel manuals. + */ + dev_dbg(ebus_to_hbus(ebus)->dev, "Clearing TCSEL\n"); + skl_update_pci_byte(skl->pci, AZX_PCIREG_TCSEL, 0x07, 0); +} + +/* called from IRQ */ +static void skl_stream_update(struct hdac_bus *bus, struct hdac_stream *hstr) +{ + snd_pcm_period_elapsed(hstr->substream); +} + +static irqreturn_t skl_interrupt(int irq, void *dev_id) +{ + struct hdac_ext_bus *ebus = dev_id; + struct hdac_bus *bus = ebus_to_hbus(ebus); + u32 status; + +#ifdef CONFIG_PM + if (!pm_runtime_active(bus->dev)) + return IRQ_NONE; +#endif + + spin_lock(&bus->reg_lock); + + status = snd_hdac_chip_readl(bus, INTSTS); + if (status == 0 || status == 0xffffffff) { + spin_unlock(&bus->reg_lock); + return IRQ_NONE; + } + + /* clear rirb int */ + status = snd_hdac_chip_readb(bus, RIRBSTS); + if (status & RIRB_INT_MASK) { + if (status & RIRB_INT_RESPONSE) + snd_hdac_bus_update_rirb(bus); + snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK); + } + + spin_unlock(&bus->reg_lock); + + return snd_hdac_chip_readl(bus, INTSTS) ? IRQ_WAKE_THREAD : IRQ_HANDLED; +} + +static irqreturn_t skl_threaded_handler(int irq, void *dev_id) +{ + struct hdac_ext_bus *ebus = dev_id; + struct hdac_bus *bus = ebus_to_hbus(ebus); + u32 status; + + status = snd_hdac_chip_readl(bus, INTSTS); + + snd_hdac_bus_handle_stream_irq(bus, status, skl_stream_update); + + return IRQ_HANDLED; +} + +/* initialize SD streams, use seprate streeam tag for PB and CP */ +static int skl_init_stream(struct hdac_ext_bus *ebus, int start_idx, + int num_stream, int dir) +{ + int stream_tag = 0; + int i, tag, idx = start_idx; + + for (i = 0; i < num_stream; i++) { + struct hdac_ext_stream *stream = + kzalloc(sizeof(*stream), GFP_KERNEL); + if (!stream) + return -ENOMEM; + tag = ++stream_tag; + snd_hdac_ext_stream_init(ebus, stream, idx, dir, tag); + idx++; + } + + return 0; +} + +static void skl_free_streams(struct hdac_ext_bus *ebus) +{ + struct hdac_stream *s; + struct hdac_ext_stream *stream; + struct hdac_bus *bus = ebus_to_hbus(ebus); + + while (!list_empty(&bus->stream_list)) { + s = list_first_entry(&bus->stream_list, struct hdac_stream, list); + stream = stream_to_hdac_ext_stream(s); + list_del(&s->list); + kfree(stream); + } +} + +static void skl_free_hda_links(struct hdac_ext_bus *ebus) +{ + struct hdac_ext_link *l; + + while (!list_empty(&ebus->hlink_list)) { + l = list_first_entry(&ebus->hlink_list, struct hdac_ext_link, list); + list_del(&l->list); + kfree(l); + } +} + +static int skl_acquire_irq(struct hdac_ext_bus *ebus, int do_disconnect) +{ + struct skl *skl = ebus_to_skl(ebus); + struct hdac_bus *bus = ebus_to_hbus(ebus); + int ret = 0; + + ret = request_threaded_irq(skl->pci->irq, skl_interrupt, + skl_threaded_handler, + IRQF_SHARED, + KBUILD_MODNAME, ebus); + if (ret) { + dev_err(bus->dev, + "unable to grab IRQ %d, disabling device\n", + skl->pci->irq); + return ret; + } + + bus->irq = skl->pci->irq; + pci_intx(skl->pci, 1); + return ret; +} + +#ifdef CONFIG_PM_SLEEP +/* + * power management + */ +static int skl_suspend(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + struct hdac_ext_bus *ebus = pci_get_drvdata(pci); + struct hdac_bus *bus = ebus_to_hbus(ebus); + + snd_hdac_bus_stop_chip(bus); + snd_hdac_bus_enter_link_reset(bus); + if (bus->irq >= 0) { + free_irq(bus->irq, bus); + bus->irq = -1; + } + + return 0; +} + +static int skl_resume(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + struct hdac_ext_bus *ebus = pci_get_drvdata(pci); + struct hdac_bus *bus = ebus_to_hbus(ebus); + struct skl *hda = ebus_to_skl(ebus); + + if (skl_acquire_irq(ebus, 1) < 0) + return -EIO; + skl_init_pci(hda); + + snd_hdac_bus_init_chip(bus, 1); + return 0; +} +#endif /* CONFIG_PM_SLEEP */ + +#ifdef CONFIG_PM +static int skl_runtime_suspend(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + struct hdac_ext_bus *ebus = pci_get_drvdata(pci); + struct hdac_bus *bus = ebus_to_hbus(ebus); + + dev_dbg(bus->dev, "in %s\n", __func__); + + /* enable controller wake up event */ + snd_hdac_chip_updatew(bus, WAKEEN, 0, STATESTS_INT_MASK); + + snd_hdac_bus_stop_chip(bus); + snd_hdac_bus_enter_link_reset(bus); + return 0; +} + +static int skl_runtime_resume(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + struct hdac_ext_bus *ebus = pci_get_drvdata(pci); + struct hdac_bus *bus = ebus_to_hbus(ebus); + struct skl *hda = ebus_to_skl(ebus); + int status; + + dev_dbg(bus->dev, "in %s\n", __func__); + + /* Read STATESTS before controller reset */ + status = snd_hdac_chip_readw(bus, STATESTS); + + skl_init_pci(hda); + snd_hdac_bus_init_chip(bus, true); + /* disable controller Wake Up event */ + snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0); + return 0; +} +#endif /* CONFIG_PM */ + +static const struct dev_pm_ops skl_pm = { + SET_SYSTEM_SLEEP_PM_OPS(skl_suspend, skl_resume) + SET_RUNTIME_PM_OPS(skl_runtime_suspend, skl_runtime_resume, NULL) +}; + +/* + * destructor + */ +static int skl_free(struct hdac_ext_bus *ebus) +{ + struct skl *skl = ebus_to_skl(ebus); + struct hdac_bus *bus = ebus_to_hbus(ebus); + + skl->init_failed = 1; /* to be sure */ + + snd_hdac_ext_stop_streams(ebus); + + if (bus->irq >= 0) + free_irq(bus->irq, (void *)bus); + if (bus->remap_addr) + iounmap(bus->remap_addr); + + snd_hdac_bus_free_stream_pages(bus); + skl_free_streams(ebus); + skl_free_hda_links(ebus); + pci_release_regions(skl->pci); + pci_disable_device(skl->pci); + + snd_hdac_ext_bus_exit(ebus); + return 0; +} + +static int skl_dmic_device_register(struct skl *skl) +{ + struct hdac_bus *bus = ebus_to_hbus(&skl->ebus); + struct platform_device *pdev; + int ret; + + pdev = platform_device_alloc("dmic-codec", -1); + if (!pdev) { + dev_err(bus->dev, "failed to allocate dmic device\n"); + return -1; + } + + ret = platform_device_add(pdev); + if (ret) { + dev_err(bus->dev, "failed to add hda codec device\n"); + platform_device_put(pdev); + return -1; + } + skl->dmic_dev = pdev; + return 0; +} + +static void skl_dmic_device_unregister(struct skl *skl) +{ + + if (skl->dmic_dev) + platform_device_unregister(skl->dmic_dev); +} + +/* + * Probe the given codec address + */ +static int probe_codec(struct hdac_ext_bus *ebus, int addr) +{ + struct hdac_bus *bus = ebus_to_hbus(ebus); + unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) | + (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID; + unsigned int res; + + mutex_lock(&bus->cmd_mutex); + snd_hdac_bus_send_cmd(bus, cmd); + snd_hdac_bus_get_response(bus, addr, &res); + mutex_unlock(&bus->cmd_mutex); + if (res == -1) + return -EIO; + dev_dbg(bus->dev, "codec #%d probed OK\n", addr); + + return snd_hdac_ext_bus_device_init(ebus, addr); +} + +/* Codec initialization */ +static int skl_codec_create(struct hdac_ext_bus *ebus) +{ + struct hdac_bus *bus = ebus_to_hbus(ebus); + int c, max_slots; + + max_slots = HDA_MAX_CODECS; + + /* First try to probe all given codec slots */ + for (c = 0; c < max_slots; c++) { + if ((bus->codec_mask & (1 << c))) { + if (probe_codec(ebus, c) < 0) { + /* + * Some BIOSen give you wrong codec addresses + * that don't exist + */ + dev_warn(bus->dev, + "Codec #%d probe error; disabling it...\n", c); + bus->codec_mask &= ~(1 << c); + /* + * More badly, accessing to a non-existing + * codec often screws up the controller bus, + * and disturbs the further communications. + * Thus if an error occurs during probing, + * better to reset the controller bus to get + * back to the sanity state. + */ + snd_hdac_bus_stop_chip(bus); + snd_hdac_bus_init_chip(bus, true); + } + } + } + return 0; +} + +static const struct hdac_bus_ops bus_core_ops = { + .command = snd_hdac_bus_send_cmd, + .get_response = snd_hdac_bus_get_response, +}; + +/* + * constructor + */ +static int skl_create(struct pci_dev *pci, + const struct hdac_io_ops *io_ops, + struct skl **rskl) +{ + struct skl *skl; + struct hdac_ext_bus *ebus; + + int err; + + *rskl = NULL; + + err = pci_enable_device(pci); + if (err < 0) + return err; + + skl = devm_kzalloc(&pci->dev, sizeof(*skl), GFP_KERNEL); + if (!skl) { + pci_disable_device(pci); + return -ENOMEM; + } + ebus = &skl->ebus; + snd_hdac_ext_bus_init(ebus, &pci->dev, &bus_core_ops, io_ops); + ebus->bus.use_posbuf = 1; + skl->pci = pci; + + ebus->bus.bdl_pos_adj = 0; + + *rskl = skl; + + return 0; +} + +static int skl_first_init(struct hdac_ext_bus *ebus) +{ + struct skl *skl = ebus_to_skl(ebus); + struct hdac_bus *bus = ebus_to_hbus(ebus); + struct pci_dev *pci = skl->pci; + int err; + unsigned short gcap; + int cp_streams, pb_streams, start_idx; + + err = pci_request_regions(pci, "Skylake HD audio"); + if (err < 0) + return err; + + bus->addr = pci_resource_start(pci, 0); + bus->remap_addr = pci_ioremap_bar(pci, 0); + if (bus->remap_addr == NULL) { + dev_err(bus->dev, "ioremap error\n"); + return -ENXIO; + } + + if (skl_acquire_irq(ebus, 0) < 0) + return -EBUSY; + + pci_set_master(pci); + synchronize_irq(bus->irq); + + gcap = snd_hdac_chip_readw(bus, GCAP); + dev_dbg(bus->dev, "chipset global capabilities = 0x%x\n", gcap); + + /* allow 64bit DMA address if supported by H/W */ + if (!dma_set_mask(bus->dev, DMA_BIT_MASK(64))) + dma_set_coherent_mask(bus->dev, DMA_BIT_MASK(64)); + else { + dma_set_mask(bus->dev, DMA_BIT_MASK(32)); + dma_set_coherent_mask(bus->dev, DMA_BIT_MASK(32)); + } + + /* read number of streams from GCAP register */ + cp_streams = (gcap >> 8) & 0x0f; + pb_streams = (gcap >> 12) & 0x0f; + + if (!pb_streams && !cp_streams) + return -EIO; + + ebus->num_streams = cp_streams + pb_streams; + + /* initialize streams */ + skl_init_stream(ebus, 0, cp_streams, SNDRV_PCM_STREAM_CAPTURE); + start_idx = cp_streams; + skl_init_stream(ebus, start_idx, pb_streams, SNDRV_PCM_STREAM_PLAYBACK); + + err = snd_hdac_bus_alloc_stream_pages(bus); + if (err < 0) + return err; + + /* initialize chip */ + skl_init_pci(skl); + + snd_hdac_bus_init_chip(bus, true); + + /* codec detection */ + if (!bus->codec_mask) { + dev_err(bus->dev, "no codecs found!\n"); + return -ENODEV; + } + + return 0; +} + +/* PCI register access. */ +static void skl_pci_writel(u32 value, u32 __iomem *addr) +{ + writel(value, addr); +} + +static u32 skl_pci_readl(u32 __iomem *addr) +{ + return readl(addr); +} + +static void skl_pci_writew(u16 value, u16 __iomem *addr) +{ + writew(value, addr); +} + +static u16 skl_pci_readw(u16 __iomem *addr) +{ + return readw(addr); +} + +static void skl_pci_writeb(u8 value, u8 __iomem *addr) +{ + writeb(value, addr); +} + +static u8 skl_pci_readb(u8 __iomem *addr) +{ + return readb(addr); +} + +/* DMA page allocation helpers. */ +static int skl_dma_alloc_pages(struct hdac_bus *bus, int type, + size_t size, struct snd_dma_buffer *buf) +{ + return snd_dma_alloc_pages(type, bus->dev, size, buf); +} + +static void skl_dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf) +{ + snd_dma_free_pages(buf); +} + +static const struct hdac_io_ops skl_io_ops = { + .reg_writel = skl_pci_writel, + .reg_readl = skl_pci_readl, + .reg_writew = skl_pci_writew, + .reg_readw = skl_pci_readw, + .reg_writeb = skl_pci_writeb, + .reg_readb = skl_pci_readb, + .dma_alloc_pages = skl_dma_alloc_pages, + .dma_free_pages = skl_dma_free_pages, +}; + +static int skl_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) +{ + struct skl *skl; + struct hdac_ext_bus *ebus = NULL; + struct hdac_bus *bus = NULL; + int err; + + err = skl_create(pci, &skl_io_ops, &skl); + if (err < 0) + return err; + + ebus = &skl->ebus; + bus = ebus_to_hbus(ebus); + + err = skl_first_init(ebus); + if (err < 0) + goto out_free; + + pci_set_drvdata(skl->pci, ebus); + + /* create device for soc dmic */ + err = skl_dmic_device_register(skl); + if (err < 0) + goto out_free; + + /* register platform dai and controls */ + err = skl_platform_register(bus->dev); + if (err < 0) + goto out_dmic_free; + + /* create codec instances */ + err = skl_codec_create(ebus); + if (err < 0) + goto out_unregister; + + pci_set_drvdata(skl->pci, ebus); + + /*configure PM */ + pm_runtime_set_autosuspend_delay(bus->dev, SKL_SUSPEND_DELAY); + pm_runtime_use_autosuspend(bus->dev); + pm_runtime_put_noidle(bus->dev); + pm_runtime_allow(bus->dev); + + pci_set_drvdata(skl->pci, ebus); + return 0; + +out_unregister: + skl_platform_unregister(bus->dev); +out_dmic_free: + skl_dmic_device_unregister(skl); +out_free: + skl->init_failed = 1; + skl_free(ebus); + pci_set_drvdata(skl->pci, NULL); + return err; +} + +static void skl_remove(struct pci_dev *pci) +{ + struct hdac_ext_bus *ebus = pci_get_drvdata(pci); + struct skl *skl = ebus_to_skl(ebus); + + if (pci_dev_run_wake(pci)) + pm_runtime_get_noresume(&pci->dev); + pci_dev_put(pci); + skl_platform_unregister(&pci->dev); + skl_dmic_device_unregister(skl); + skl_free(ebus); + dev_set_drvdata(&pci->dev, NULL); +} + +/* PCI IDs */ +static const struct pci_device_id skl_ids[] = { + /* Sunrise Point-LP */ + { PCI_DEVICE(0x8086, 0x9d70), 0}, + { 0, } +}; +MODULE_DEVICE_TABLE(pci, skl_ids); + +/* pci_driver definition */ +static struct pci_driver skl_driver = { + .name = KBUILD_MODNAME, + .id_table = skl_ids, + .probe = skl_probe, + .remove = skl_remove, + .driver = { + .pm = &skl_pm, + }, +}; +module_pci_driver(skl_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Intel Skylake ASoC HDA driver");

From: Jeeja KP jeeja.kp@intel.com

Decoupled mode is where audio link is broken to frontend HDA and backend (hda/i2s/dmic/hdmi) links. This patch adds support for decoupled mode and then adds dais, dai ops for be/fe cpu dais and interrupt handler change to support decoupled mode

Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl-pcm.c | 367 +++++++++++++++++++++++++++++++++++++- sound/soc/intel/skylake/skl.c | 11 ++ 2 files changed, 370 insertions(+), 8 deletions(-)

diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index 42cafab47915..97efcd7181ad 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -102,6 +102,14 @@ static void skl_set_pcm_constrains(struct hdac_ext_bus *ebus, 20, 178000000); }

+static enum hdac_ext_stream_type skl_get_host_stream_type(struct hdac_ext_bus *ebus) +{ + if (ebus->ppcap) + return HDAC_EXT_STREAM_TYPE_HOST; + else + return HDAC_EXT_STREAM_TYPE_COUPLED; +} + static int skl_pcm_open(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -114,7 +122,7 @@ static int skl_pcm_open(struct snd_pcm_substream *substream, pm_runtime_get_sync(dai->dev);

stream = snd_hdac_ext_stream_assign(ebus, substream, - HDAC_EXT_STREAM_TYPE_COUPLED); + skl_get_host_stream_type(ebus)); if (stream == NULL) return -EBUSY;

@@ -150,14 +158,26 @@ static int skl_get_format(struct snd_pcm_substream *substream, { struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); struct skl_dma_params *dma_params; + struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); int format_val = 0; - struct snd_soc_dai *codec_dai = rtd->codec_dai;

- dma_params = (struct skl_dma_params *) + if (ebus->ppcap) { + struct snd_pcm_runtime *runtime = substream->runtime; + + format_val = snd_hdac_calc_stream_format(runtime->rate, + runtime->channels, + runtime->format, + 32, 0); + + } else { + struct snd_soc_dai *codec_dai = rtd->codec_dai; + + dma_params = (struct skl_dma_params *) snd_soc_dai_get_dma_data(codec_dai, substream);

- if (!dma_params) - format_val = dma_params->format; + if (!dma_params) + format_val = dma_params->format; + }

return format_val; } @@ -196,8 +216,9 @@ static int skl_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); + struct hdac_ext_stream *stream = get_hdac_stream(substream); struct snd_pcm_runtime *runtime = substream->runtime; - int ret; + int ret, dma_id;

dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); ret = skl_substream_alloc_pages(ebus, substream, @@ -213,17 +234,22 @@ static int skl_pcm_hw_params(struct snd_pcm_substream *substream, dev_dbg(dai->dev, "format_val, rate=%d, ch=%d, format=%d\n", runtime->rate, runtime->channels, runtime->format);

+ dma_id = hdac_stream(stream)->stream_tag - 1; + dev_dbg(dai->dev, "dma_id=%d\n", dma_id); + return ret; }

static void skl_pcm_close(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { + struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct hdac_ext_stream *stream = get_hdac_stream(substream); struct skl_dma_params *dma_params = NULL;

dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); - snd_hdac_ext_stream_release(stream, HDAC_EXT_STREAM_TYPE_COUPLED); + + snd_hdac_ext_stream_release(stream, skl_get_host_stream_type(ebus));

dma_params = (struct skl_dma_params *) snd_soc_dai_get_dma_data(dai, substream); @@ -247,6 +273,169 @@ static int skl_pcm_hw_free(struct snd_pcm_substream *substream, return skl_substream_free_pages(ebus_to_hbus(ebus), substream); }

+static int skl_dmic_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_pcm_hw_params params = {0}; + struct snd_interval *channels, *rate; + + dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); + + channels = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_CHANNELS); + channels->min = channels->max = substream->runtime->channels; + rate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE); + rate->min = rate->max = substream->runtime->rate; + snd_mask_set(&params.masks[SNDRV_PCM_HW_PARAM_FORMAT - + SNDRV_PCM_HW_PARAM_FIRST_MASK], + substream->runtime->format); + + return 0; +} + +static int skl_link_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); + struct hdac_ext_stream *link_dev; + struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); + struct skl_dma_params *dma_params; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int dma_id; + + pr_debug("%s\n", __func__); + link_dev = snd_hdac_ext_stream_assign(ebus, substream, + HDAC_EXT_STREAM_TYPE_LINK); + if (!link_dev) + return -EBUSY; + + snd_soc_dai_set_dma_data(dai, substream, (void *)link_dev); + + /* set the stream tag in the codec dai dma params */ + dma_params = (struct skl_dma_params *) + snd_soc_dai_get_dma_data(codec_dai, substream); + if (dma_params) + dma_params->stream_tag = hdac_stream(link_dev)->stream_tag; + snd_soc_dai_set_dma_data(codec_dai, substream, (void *)dma_params); + dma_id = hdac_stream(link_dev)->stream_tag - 1; + + return 0; +} + +static int skl_link_pcm_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); + struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); + struct hdac_ext_stream *link_dev = + snd_soc_dai_get_dma_data(dai, substream); + unsigned int format_val = 0; + struct skl_dma_params *dma_params; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_pcm_hw_params *params; + struct snd_interval *channels, *rate; + struct hdac_ext_link *link; + + dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); + if (link_dev->link_prepared) { + dev_dbg(dai->dev, "already stream is prepared - returning\n"); + return 0; + } + params = devm_kzalloc(dai->dev, sizeof(*params), GFP_KERNEL); + if (params == NULL) + return -ENOMEM; + + channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + channels->min = channels->max = substream->runtime->channels; + rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + rate->min = rate->max = substream->runtime->rate; + snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT - + SNDRV_PCM_HW_PARAM_FIRST_MASK], + substream->runtime->format); + + + dma_params = (struct skl_dma_params *) + snd_soc_dai_get_dma_data(codec_dai, substream); + if (dma_params) + format_val = dma_params->format; + dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d codec_dai_name=%s\n", + hdac_stream(link_dev)->stream_tag, format_val, codec_dai->name); + + snd_hdac_ext_link_stream_reset(link_dev); + + snd_hdac_ext_link_stream_setup(link_dev, format_val); + + link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name); + if (!link) + return -EINVAL; + + snd_hdac_ext_link_set_stream_id(link, hdac_stream(link_dev)->stream_tag); + link_dev->link_prepared = 1; + + return 0; +} + +static int skl_link_pcm_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct hdac_ext_stream *link_dev = + snd_soc_dai_get_dma_data(dai, substream); + + dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd); + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + snd_hdac_ext_link_stream_start(link_dev); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_STOP: + snd_hdac_ext_link_stream_clear(link_dev); + break; + + default: + return -EINVAL; + } + return 0; +} + +static int skl_link_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); + struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); + struct hdac_ext_stream *link_dev = + snd_soc_dai_get_dma_data(dai, substream); + struct hdac_ext_link *link; + + dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); + + link_dev->link_prepared = 0; + + link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name); + if (!link) + return -EINVAL; + + snd_hdac_ext_link_clear_stream_id(link, hdac_stream(link_dev)->stream_tag); + snd_hdac_ext_stream_release(link_dev, HDAC_EXT_STREAM_TYPE_LINK); + return 0; +} + +static int skl_hda_be_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + return pm_runtime_get_sync(dai->dev); +} + +static void skl_hda_be_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + pm_runtime_mark_last_busy(dai->dev); + pm_runtime_put_autosuspend(dai->dev); +} + static struct snd_soc_dai_ops skl_pcm_dai_ops = { .startup = skl_pcm_open, .shutdown = skl_pcm_close, @@ -255,6 +444,21 @@ static struct snd_soc_dai_ops skl_pcm_dai_ops = { .hw_free = skl_pcm_hw_free, };

+static struct snd_soc_dai_ops skl_dmic_dai_ops = { + .startup = skl_hda_be_startup, + .prepare = skl_dmic_prepare, + .shutdown = skl_hda_be_shutdown, +}; + +static struct snd_soc_dai_ops skl_link_dai_ops = { + .startup = skl_hda_be_startup, + .prepare = skl_link_pcm_prepare, + .hw_params = skl_link_hw_params, + .hw_free = skl_link_hw_free, + .trigger = skl_link_pcm_trigger, + .shutdown = skl_hda_be_shutdown, +}; + static struct snd_soc_dai_driver skl_platform_dai[] = { { .name = "System Pin", @@ -275,6 +479,17 @@ static struct snd_soc_dai_driver skl_platform_dai[] = { }, }, { + .name = "Reference Pin", + .ops = &skl_pcm_dai_ops, + .capture = { + .stream_name = "Reference Capture", + .channels_min = HDA_MONO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, + }, +}, +{ .name = "Deepbuffer Pin", .ops = &skl_pcm_dai_ops, .playback = { @@ -296,6 +511,80 @@ static struct snd_soc_dai_driver skl_platform_dai[] = { .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, +/* BE CPU Dais */ +{ + .name = "iDisp Pin", + .ops = &skl_link_dai_ops, + .playback = { + .stream_name = "iDisp Tx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, +}, +{ + .name = "DMIC01 Pin", + .ops = &skl_dmic_dai_ops, + .capture = { + .stream_name = "DMIC01 Rx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, + }, +}, +{ + .name = "DMIC23 Pin", + .ops = &skl_dmic_dai_ops, + .capture = { + .stream_name = "DMIC23 Rx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, + }, +}, +{ + .name = "HD-Codec Pin", + .ops = &skl_link_dai_ops, + .playback = { + .stream_name = "HD-Codec Tx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .stream_name = "HD-Codec Rx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, +}, +{ + .name = "HD-Codec-SPK Pin", + .ops = &skl_link_dai_ops, + .playback = { + .stream_name = "HD-Codec-SPK Tx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, +}, +{ + .name = "HD-Codec-AMIC Pin", + .ops = &skl_link_dai_ops, + .capture = { + .stream_name = "HD-Codec-AMIC Rx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, +}, };

static int skl_platform_open(struct snd_pcm_substream *substream) @@ -312,7 +601,7 @@ static int skl_platform_open(struct snd_pcm_substream *substream) return 0; }

-static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream, +static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { struct hdac_ext_bus *ebus = get_bus_ctx(substream); @@ -385,6 +674,68 @@ static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream, return 0; }

+static int skl_dsp_trigger(struct snd_pcm_substream *substream, + int cmd) +{ + struct hdac_ext_bus *ebus = get_bus_ctx(substream); + struct hdac_bus *bus = ebus_to_hbus(ebus); + struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct hdac_ext_stream *stream; + int start; + unsigned long cookie; + struct hdac_stream *hstr; + + dev_dbg(bus->dev, "In %s cmd=%d streamname=%s\n", __func__, cmd, cpu_dai->name); + + stream = get_hdac_stream(substream); + hstr = hdac_stream(stream); + + if (!hstr->prepared) + return -EPIPE; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + start = 1; + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_STOP: + start = 0; + break; + + default: + return -EINVAL; + } + + spin_lock_irqsave(&bus->reg_lock, cookie); + + if (start) + snd_hdac_stream_start(hdac_stream(stream), true); + else + snd_hdac_stream_stop(hdac_stream(stream)); + + if (start) + snd_hdac_stream_timecounter_init(hstr, 0); + + spin_unlock_irqrestore(&bus->reg_lock, cookie); + + return 0; +} +static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream, + int cmd) +{ + struct hdac_ext_bus *ebus = get_bus_ctx(substream); + + if (ebus->ppcap) + return skl_dsp_trigger(substream, cmd); + else + return skl_pcm_trigger(substream, cmd); +} + /* calculate runtime delay from LPIB */ static int skl_get_delay_from_lpib(struct hdac_ext_bus *ebus, struct hdac_ext_stream *sstream, diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index c6f4902af9d0..7d7ae81d5a08 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -436,6 +436,8 @@ static int skl_first_init(struct hdac_ext_bus *ebus) return -ENXIO; }

+ snd_hdac_ext_bus_parse_capabilities(ebus); + if (skl_acquire_irq(ebus, 0) < 0) return -EBUSY;

@@ -560,6 +562,15 @@ static int skl_probe(struct pci_dev *pci,

pci_set_drvdata(skl->pci, ebus);

+ /* check if dsp is there */ + if (ebus->ppcap) { + /* TODO register with dsp IPC */ + dev_dbg(bus->dev, "Register dsp\n"); + } + + if (ebus->mlcap) + snd_hdac_ext_bus_get_ml_capabilities(ebus); + /* create device for soc dmic */ err = skl_dmic_device_register(skl); if (err < 0)